I wont say that so easily, his shadow mimic works but Madara has still more powerful justsu's like Izanagi, teleportation and his untouchable state, i think if u add up sasuke (against madara) it would be a great battle...hmm...so a healthi shikamaru+naruto sud be enough to end madara...
Madara just said it's regretable to have him as opponent because he saw through Madaras plan, not because he had him bound in shadow mimic. If Madara couldn't use space time when he's bound the Statue would've crushed him with Shikamaru. I assume he just wanted to be sure that Shikamaru won't try to get away with the vessel with the chakra sealed inside.You must be registered for see images
So i assume it works
when the statue stomped the ground would shika lose control of the shadow..hence madara would be able to use his s-t, and why would his soldier stomp him ?Madara just said it's regretable to have him as opponent because he saw through Madaras plan, not because he had him bound in shadow mimic. If Madara couldn't use space time when he's bound the Statue would've crushed him with Shikamaru. I assume he just wanted to be sure that Shikamaru won't try to get away with the vessel with the chakra sealed inside.